AMD Ryzen 7 3800XT review

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Power Consumption and temperatures

Power Consumption

We show energy consumption based on a the entire PC (motherboard / processor / graphics card / memory / SSD). This number depends and will vary per motherboard (added ICs / controllers / wifi / Bluetooth) and PSU (efficiency). Keep in mind that we measure the ENTIRE PC, not just the processor's power consumption. Your average PC can differ from our numbers if you add optical drives, HDDs, soundcards etc. 


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I want to make it very clear that power consumption measurements will differ per PC and setup. Your attached components use power but your motherboard can also have additional ICs installed like an audio controller, 3rd party chips, network controllers, extra SATA controllers, extra USB controllers, and so on. These parts all consume power, so these results are a subjective indication. Next, to that, we stress all CPU cores 100% and thus show peak power consumption. Unless you transcode video with the right software your average power consumption will be much lower.

Temperatures

The reason we do not table up temperature results is that we'd need to apply the same cooling over and over on all platforms. Also, coolers (RPM) react differently to TDP and variables like BIOS. Therefore we simply plot a temperature stress test. 


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Observation 1, temperatures:

We make use of a Kraken X62 based LCS cooler, you can see that the new XT processors more quickly run higher temperatures, you need to be aware of that as I cannot recommend using a heatpipe cooler for this test. Under full load, 75 Degrees C.

Observation 2, per core clocks:

We see at least two cores hit 4700 MHz, the other six in a 4600 MHz range. That's impressive.

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